GeForce GTX 560 Ti 448 vs Radeon HD 6950 2GB

Intro

Compare all of that to the Radeon HD 6950 2GB, which comes with GPU clock speed of 800 MHz, and 2048 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also features 1408 SPUs, 88 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950 2GB		200 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 10 Watts (5%)

Memory Bandwidth

Theoretically, the Radeon HD 6950 2GB should perform a little bit faster than the GeForce GTX 560 Ti 448 in general. (explain)

Radeon HD 6950 2GB		160000 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 16000 (11%)

Texel Rate

The Radeon HD 6950 2GB should be much (approximately 72%) faster with regards to AF than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 29408 (72%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 Ti 448 is a better choice, but it probably won't make a huge difference. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 6950 2GB		25600 Mpixels/sec
	Difference: 3680 (14%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.